JPH0544988B2 - - Google Patents
Info
- Publication number
- JPH0544988B2 JPH0544988B2 JP25528684A JP25528684A JPH0544988B2 JP H0544988 B2 JPH0544988 B2 JP H0544988B2 JP 25528684 A JP25528684 A JP 25528684A JP 25528684 A JP25528684 A JP 25528684A JP H0544988 B2 JPH0544988 B2 JP H0544988B2
- Authority
- JP
- Japan
- Prior art keywords
- wall thickness
- tubular container
- mouth
- mold
- container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229920003002 synthetic resin Polymers 0.000 claims description 10
- 239000000057 synthetic resin Substances 0.000 claims description 10
- -1 polyethylene terephthalate Polymers 0.000 claims description 7
- 238000001746 injection moulding Methods 0.000 claims description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 3
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 239000000047 product Substances 0.000 description 7
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- FJKROLUGYXJWQN-UHFFFAOYSA-N 4-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 2
- LLLVZDVNHNWSDS-UHFFFAOYSA-N 4-methylidene-3,5-dioxabicyclo[5.2.2]undeca-1(9),7,10-triene-2,6-dione Chemical compound C1(C2=CC=C(C(=O)OC(=C)O1)C=C2)=O LLLVZDVNHNWSDS-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- MMINFSMURORWKH-UHFFFAOYSA-N 3,6-dioxabicyclo[6.2.2]dodeca-1(10),8,11-triene-2,7-dione Chemical group O=C1OCCOC(=O)C2=CC=C1C=C2 MMINFSMURORWKH-UHFFFAOYSA-N 0.000 description 1
- 229940090248 4-hydroxybenzoic acid Drugs 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 125000003827 glycol group Chemical group 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- ABMFBCRYHDZLRD-UHFFFAOYSA-N naphthalene-1,4-dicarboxylic acid Chemical compound C1=CC=C2C(C(=O)O)=CC=C(C(O)=O)C2=C1 ABMFBCRYHDZLRD-UHFFFAOYSA-N 0.000 description 1
- RXOHFPCZGPKIRD-UHFFFAOYSA-N naphthalene-2,6-dicarboxylic acid Chemical compound C1=C(C(O)=O)C=CC2=CC(C(=O)O)=CC=C21 RXOHFPCZGPKIRD-UHFFFAOYSA-N 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- YQUVCSBJEUQKSH-UHFFFAOYSA-N protochatechuic acid Natural products OC(=O)C1=CC=C(O)C(O)=C1 YQUVCSBJEUQKSH-UHFFFAOYSA-N 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-N terephthalic acid group Chemical group C(C1=CC=C(C(=O)O)C=C1)(=O)O KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 1
- WKOLLVMJNQIZCI-UHFFFAOYSA-N vanillic acid Chemical compound COC1=CC(C(O)=O)=CC=C1O WKOLLVMJNQIZCI-UHFFFAOYSA-N 0.000 description 1
- TUUBOHWZSQXCSW-UHFFFAOYSA-N vanillic acid Natural products COC1=CC(O)=CC(C(O)=O)=C1 TUUBOHWZSQXCSW-UHFFFAOYSA-N 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/508—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above
- B01L3/5082—Test tubes per se
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は合成樹脂製管状容器に関するものであ
る。詳しくは臨床検査用の検体容器等として好適
に用い得る合成樹脂製の管状容器に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a synthetic resin tubular container. Specifically, the present invention relates to a tubular container made of synthetic resin that can be suitably used as a specimen container for clinical testing.
従来、臨床検査用の検体容器としてはガラス製
の管状容器が用いられていたが、容器が破損しや
すく、破片によるけがや検体採取のやり直し等が
必要となる事等の問題があり、近年に至り合成樹
脂製の容器の使用が検討されている。
Traditionally, glass tubular containers have been used as sample containers for clinical tests, but these containers have been prone to breakage, resulting in injuries from fragments and the need to re-collect specimens. Currently, the use of containers made of synthetic resin is being considered.
食品容器等の通常の容器の場合、容器の口部の
外側には通常ネジ部や鍔状部が設けられており、
射出成形の金型等から離型する場合等、このネジ
部や鍔状部を割型の一部で保持して他の金型部分
から離型するので離形不能となるようなことはな
い。
In the case of ordinary containers such as food containers, there is usually a threaded part or a flange-like part on the outside of the mouth of the container.
When releasing the mold from an injection mold, etc., this threaded part or flange-like part is held by a part of the split mold and released from other parts of the mold, so there is no possibility of the mold becoming impossible to release. .
しかしながら、臨床検査用の検体容器等の場合
は、通常容器の口部から胴部にかけての外側面に
出つ張りのない構造とされており、合成樹脂を用
いて射出成形等により製造する場合離型が難しい
と云う問題がある。 However, in the case of specimen containers for clinical tests, the outer surface from the mouth to the body of the container usually does not protrude, and when manufactured by injection molding etc. using synthetic resin, there is no protrusion. There is a problem that the mold is difficult.
特に、成形金型の雌型に成形品が付着してしま
つた場合には形成品を壊さずに取出すことは難か
しい。 Particularly, if a molded product adheres to the female die of the mold, it is difficult to remove the molded product without damaging it.
このため、例えば、成形品の口部近傍の内側壁
に突起状のアンダーカツト部を形成し、型開きの
際に成形品が必ず雄型（中子）に付着してくるよ
うにすることが考えられた。 For this reason, for example, it is possible to form a protruding undercut on the inner wall near the mouth of the molded product to ensure that the molded product always adheres to the male mold (core) when the mold is opened. it was thought.
しかし、このような口部近傍内側壁にアンダー
カツト部を設けた場合には、例えば検体容器とし
て使用するに当り、該アンダーカツト部分に内容
物（例えば血液）が付着するので、内容物を遠心
分離後沈澱させようとする際に口部近傍に付着し
ていた内容物が上澄液（例えば血清）中に落ち込
む等の問題がある。 However, when such an undercut is provided on the inner wall near the mouth, the contents (e.g., blood) will adhere to the undercut when used as a sample container, so the contents cannot be centrifuged. When attempting to precipitate after separation, there are problems such as the contents adhering to the vicinity of the mouth falling into the supernatant liquid (eg, serum).
また、口部近傍のアンダーカツト部は口栓等の
邪魔になる等の問題もある。 Further, there is a problem that the undercut near the mouth gets in the way of the mouth plug, etc.
本発明の要旨は、口部から胴部にかけての外側
面に実質的に出つ張りのない、合成樹脂を射出成
形して一体的に形成された管状容器であつて、該
管状容器の長手方向中央より下即の内側面に高さ
0.05〜１mmのアンダーカツト部分が形成さてお
り、胴部の肉厚を口部から底部に向つて漸増させ
て底部近傍の肉厚を口部肉厚の1.1〜３倍とし、
また底部肉厚を胴部の平均肉厚の２倍以上とした
ことを特徴とする合成樹脂製管状容器に存する。
The gist of the present invention is a tubular container that is integrally formed by injection molding a synthetic resin and has substantially no protrusion on the outer surface from the mouth to the body, the tubular container being integrally formed in the longitudinal direction of the tubular container. Height on inner surface immediately below center
An undercut part of 0.05 to 1 mm is formed, and the thickness of the body is gradually increased from the mouth to the bottom so that the thickness near the bottom is 1.1 to 3 times the thickness of the mouth.
The present invention also provides a synthetic resin tubular container characterized in that the bottom wall thickness is at least twice the average wall thickness of the body.
以下、本発明の容器の一例につき図面を用いて
更に詳細に説明する。 Hereinafter, one example of the container of the present invention will be explained in more detail using the drawings.
第１図は本発明の容器の一例の縦断面図であ
る。 FIG. 1 is a longitudinal sectional view of an example of the container of the present invention.
図中１は管状容器、２は口部、３は胴部、４は
底部、５はアンダーカツト部をそれぞれ示す。 In the figure, 1 is a tubular container, 2 is a mouth part, 3 is a body part, 4 is a bottom part, and 5 is an undercut part.
本発明の管状容器１を構成する合成樹脂として
は特に制限はないが、検体容器等を成形する場合
には、その用途上透明性に優れたものが望まし
い。 There are no particular limitations on the synthetic resin constituting the tubular container 1 of the present invention, but when molding a sample container or the like, a resin with excellent transparency is desirable for its intended use.
例えばポリエチレンテレフタレート、ポリブチ
レンテレフタレート、ポリプロピレン等が挙げら
れる。 Examples include polyethylene terephthalate, polybutylene terephthalate, polypropylene, and the like.
中でもポリエチレンテレフタレートが最も好適
に用いられる。 Among them, polyethylene terephthalate is most preferably used.
ポリエチンレンテレフタレートとは重合体の少
なくとも75モル％、好ましくは85モル％が
の繰り返しエチレンテレフタレート単位を含有す
る重合体であつて、共重合体の場合は、その25モ
ル％、好ましくは15モル％までの範囲でエチレン
テレフタレート重合体のグリコール部分をジエチ
レングリコール、プロパン−１，３−ジオール、
ブタン−１，４−ジオール、ポリテトラメチレン
グリコール、ポリエチレングリコール、ポリプロ
ピレングリコール、１，４−ヒドロキシメチルシ
クロヘキサン等に変えたものや、あるいは共重合
体の25モル％、好ましくは15モル％までの範囲で
エチレンテレフタレート重合体のテレフタル酸部
分をイソフタル酸、パラヒドロキシ安息香酸、バ
ニリン酸、ビス安息香酸、ナフタレン−１，４−
ジカルボン酸、ナフタレン−２，６−ジカルボン
酸、アジピン酸、セバチン酸、デカン−１，10−
ジカルボン酸等に変えたもの等を云う。 Polyethylene lenterephthalate means that at least 75 mol%, preferably 85 mol% of the polymer is In the case of a copolymer containing repeating ethylene terephthalate units, the glycol moiety of the ethylene terephthalate polymer can be added to diethylene glycol, propane-1,3 in a range of up to 25 mol%, preferably up to 15 mol%. -diol,
Butane-1,4-diol, polytetramethylene glycol, polyethylene glycol, polypropylene glycol, 1,4-hydroxymethylcyclohexane, etc., or a copolymer in a range of up to 25 mol%, preferably 15 mol%. The terephthalic acid moiety of the ethylene terephthalate polymer is converted into isophthalic acid, parahydroxybenzoic acid, vanillic acid, bisbenzoic acid, naphthalene-1,4-
Dicarboxylic acid, naphthalene-2,6-dicarboxylic acid, adipic acid, sebacic acid, decane-1,10-
Refers to those changed to dicarboxylic acids, etc.
本発明の管状容器１は前述したような合成樹脂
を射出成形により一体的に成形したものであり、
その口部１から底部４に至る胴部３の外側面に実
質的に出張りが形成されていない構造のものであ
る。 The tubular container 1 of the present invention is integrally molded from the synthetic resin described above by injection molding,
It has a structure in which substantially no protrusion is formed on the outer surface of the body part 3 from the mouth part 1 to the bottom part 4.
このような管状容器１の場合、前述したように
金型からの離型が問題となる。このため、本発明
の管状容器１においては、管状容器１の内側面の
特定位置にアンダーカツト部５を形成してある。
アンダーカツト部５を設ることにより金型からの
離型の際、成形品は雄型（中子）側に確実に付着
した状態で離型され雌型に付着することはない。
雄型に付着した成形品は通常の手段（ストリツパ
ープレートを用いる等）により容易に取外すこと
ができる。 In the case of such a tubular container 1, release from the mold becomes a problem as described above. For this reason, in the tubular container 1 of the present invention, an undercut portion 5 is formed at a specific position on the inner surface of the tubular container 1.
By providing the undercut portion 5, when the molded product is released from the mold, it is released while firmly adhering to the male mold (core) side, and does not adhere to the female mold.
The molded product attached to the male mold can be easily removed by conventional means (such as using a stripper plate).
本発明の管状容器１においてはアンダーカツト
部５を管状容器１の長手方向中央より下側の内側
面に設けてある。 In the tubular container 1 of the present invention, an undercut portion 5 is provided on the inner surface of the tubular container 1 below the center in the longitudinal direction.
このような位置にアンダーカツト部５を形成す
ることにより、前述したような検体の分離沈殿等
を行なう際の上澄液の汚染等の問題はなくなる。 By forming the undercut portion 5 at such a position, problems such as contamination of the supernatant liquid during separation and precipitation of a sample as described above are eliminated.
アンダーカツト部５の大きさは比較的小さなも
ので良く、径１〜２mm程度、高さ0.05〜0.1mm程
度の小突起が数個所設けられている程度で良く、
またその形状は前記した小突起状のもの、管状容
器の内壁に沿つた環状のもの、例えば幅１〜２mm
程度、高さ0.05〜１mm程度の環状アンダーカツト
部等が考えられる。 The size of the undercut portion 5 may be relatively small, and may be provided with several small protrusions with a diameter of about 1 to 2 mm and a height of about 0.05 to 0.1 mm.
The shape may be the small protrusion mentioned above, or an annular shape along the inner wall of the tubular container, for example, a width of 1 to 2 mm.
An annular undercut portion with a height of about 0.05 to 1 mm is considered.
更に、アンダーカツト部５は上述したように管
状容器１の長手方向中央より下側に設けられる
が、その位置はなるべく底部に近いことが望まし
い。このようにすれば、シヨートシヨツトの場合
（通常ゲートは底部にある）でも離型に問題がな
くなる。 Furthermore, as described above, the undercut portion 5 is provided below the longitudinal center of the tubular container 1, but it is desirable that its position be as close to the bottom as possible. In this way, there will be no problem with mold release even in the case of a short shot (usually the gate is located at the bottom).
更に、管状容器１の胴部３の肉厚を口部２から
底部４に向つて漸増するように構成すると、管状
容器の円周方向の肉厚が均一となるので好ましい
漸増の割合は、底部近傍の肉厚を口部肉厚の1.1
〜3.0倍程度とするのが良い。 Furthermore, if the wall thickness of the body 3 of the tubular container 1 is configured to gradually increase from the mouth 2 toward the bottom 4, the wall thickness in the circumferential direction of the tubular container becomes uniform, so a preferable rate of gradual increase is as follows. The nearby wall thickness is 1.1 of the mouth wall thickness.
It is best to set it to about 3.0 times.
また、底部肉厚を胴部の平均肉厚の２倍以上と
することにより、射出成形時のゲート部（管状容
器底部）に発生する白化部が容器の内面にまで達
しないようにすることができ、このようにすれ
ば、白化部を沈澱物等と誤認することがないので
望ましい。 In addition, by making the bottom wall thickness at least twice the average wall thickness of the body, it is possible to prevent the whitening that occurs at the gate part (bottom part of the tubular container) during injection molding from reaching the inner surface of the container. This is desirable because it prevents the whitened portion from being mistaken for a precipitate or the like.
本発明の容器によれば金型離型時に雌型に成形
品が付着するようなことがなく、また、アンダー
カツト部が検体等の処理の邪魔をする位置にない
ので、検体の処理には全く問題を生ずることがな
く、更に、シヨートシヨツトの場合等も確実に離
型することができる等の効果を生ずる。
According to the container of the present invention, the molded product does not adhere to the female mold when the mold is released, and the undercut portion is not located in a position that interferes with the processing of the specimen, etc., so that it is easy to process the specimen. There is no problem at all, and furthermore, even in the case of short shot, the mold can be reliably released.
第１図は本発明の容器の一例の縦断面図であ
る。
図中、１は管状容器、２は口部、３は胴部、４
は底部、５はアンダーカツト部をそれぞれ示す。
FIG. 1 is a longitudinal sectional view of an example of the container of the present invention. In the figure, 1 is a tubular container, 2 is a mouth part, 3 is a body part, 4
5 indicates the bottom portion, and 5 indicates the undercut portion.
Claims (1)
つ張りのない、合成樹脂を射出成形して一体的に
形成された管状容器であつて、該管状容器の長手
方向中央より下側の内側面に高さ0.05〜１mmのア
ンダーカツト部分が形成されており、胴部の肉厚
を口部から底部に向つて漸増させて底部近傍の肉
厚を口部肉厚の1.1〜３倍とし、また底部肉厚を
胴部の平均肉厚の２倍以上としたことを特徴とす
る合成樹脂製管状容器。 ２ 合成樹脂製管状容器がポリエチレンテレフタ
レート樹脂からなる特許請求の範囲第１項記載の
管状容器。[Scope of Claims] 1. A tubular container integrally formed by injection molding of synthetic resin, with substantially no protrusion on the outer surface from the mouth to the body, which An undercut part with a height of 0.05 to 1 mm is formed on the inner surface below the center of the direction, and the wall thickness of the body is gradually increased from the mouth to the bottom, so that the wall thickness near the bottom becomes the mouth wall thickness. 1.1 to 3 times the average wall thickness of the body, and the bottom wall thickness is at least twice the average wall thickness of the body. 2. The tubular container according to claim 1, wherein the synthetic resin tubular container is made of polyethylene terephthalate resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59255286A JPS61132866A (en) | 1984-12-03 | 1984-12-03 | Tubular vessel made of synthetic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59255286A JPS61132866A (en) | 1984-12-03 | 1984-12-03 | Tubular vessel made of synthetic resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61132866A JPS61132866A (en) | 1986-06-20 |
| JPH0544988B2 true JPH0544988B2 (en) | 1993-07-07 |
Family
ID=17276647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59255286A Granted JPS61132866A (en) | 1984-12-03 | 1984-12-03 | Tubular vessel made of synthetic resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61132866A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5286950A (en) * | 1991-03-26 | 1994-02-15 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Fixing device and heat roller therefor |
| US5707331A (en) * | 1995-05-05 | 1998-01-13 | John R. Wells | Automatic multiple-decanting centrifuge |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5244820A (en) * | 1975-08-28 | 1977-04-08 | Toshio Moriyama | Method of production of spitz tube |
| JPS5248512A (en) * | 1975-10-16 | 1977-04-18 | Toshiba Corp | Heat treating method of long size steel materials |
| JPS5948740B2 (en) * | 1981-12-19 | 1984-11-28 | 本田技研工業株式会社 | Vertical injection molding equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5948740U (en) * | 1982-09-25 | 1984-03-31 | 安西総業株式会社 | test tube |
-
1984
- 1984-12-03 JP JP59255286A patent/JPS61132866A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5244820A (en) * | 1975-08-28 | 1977-04-08 | Toshio Moriyama | Method of production of spitz tube |
| JPS5248512A (en) * | 1975-10-16 | 1977-04-18 | Toshiba Corp | Heat treating method of long size steel materials |
| JPS5948740B2 (en) * | 1981-12-19 | 1984-11-28 | 本田技研工業株式会社 | Vertical injection molding equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61132866A (en) | 1986-06-20 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |